137 lines
		
	
	
	
		
			3.9 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			137 lines
		
	
	
	
		
			3.9 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
/*
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This file is part of Telegram Desktop,
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the official desktop application for the Telegram messaging service.
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For license and copyright information please follow this link:
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https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
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*/
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#include "history/history_item_text.h"
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#include "history/history_item.h"
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#include "history/history_item_components.h"
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#include "data/data_media_types.h"
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#include "data/data_web_page.h"
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#include "data/data_groups.h"
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#include "data/data_peer.h"
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#include "lang/lang_keys.h"
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#include "ui/text_options.h"
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TextWithEntities WrapAsReply(
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		TextWithEntities &&text,
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		not_null<HistoryItem*> to) {
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	const auto name = to->author()->name;
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	auto result = TextWithEntities();
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	result.text.reserve(
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		lang(lng_in_reply_to).size()
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		+ name.size()
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		+ 4
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		+ text.text.size());
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	result.text.append('['
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	).append(lang(lng_in_reply_to)
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	).append(' '
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	).append(name
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	).append(qsl("]\n")
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	);
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	TextUtilities::Append(result, std::move(text));
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	return result;
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}
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TextWithEntities WrapAsForwarded(
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		TextWithEntities &&text,
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		not_null<HistoryMessageForwarded*> forwarded) {
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	auto info = forwarded->text.originalTextWithEntities(
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		AllTextSelection,
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		ExpandLinksAll);
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	auto result = TextWithEntities();
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	result.text.reserve(
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		info.text.size()
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		+ 4
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		+ text.text.size());
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	result.entities.reserve(
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		info.entities.size()
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		+ text.entities.size());
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	result.text.append('[');
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	TextUtilities::Append(result, std::move(info));
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	result.text.append(qsl("]\n"));
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	TextUtilities::Append(result, std::move(text));
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	return result;
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}
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TextWithEntities WrapAsItem(
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		not_null<HistoryItem*> item,
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		TextWithEntities &&result) {
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	if (const auto reply = item->Get<HistoryMessageReply>()) {
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		if (const auto message = reply->replyToMsg) {
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			result = WrapAsReply(std::move(result), message);
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		}
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	}
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	if (const auto forwarded = item->Get<HistoryMessageForwarded>()) {
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		result = WrapAsForwarded(std::move(result), forwarded);
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	}
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	return result;
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}
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TextWithEntities HistoryItemText(not_null<HistoryItem*> item) {
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	const auto media = item->media();
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	auto mediaResult = media ? media->clipboardText() : TextWithEntities();
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	auto textResult = mediaResult.text.isEmpty()
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		? item->clipboardText()
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		: TextWithEntities();
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	auto logEntryOriginalResult = [&] {
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		const auto entry = item->Get<HistoryMessageLogEntryOriginal>();
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		if (!entry) {
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			return TextWithEntities();
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		}
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		const auto title = TextUtilities::SingleLine(entry->page->title.isEmpty()
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			? entry->page->author
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			: entry->page->title);
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		auto titleResult = TextUtilities::ParseEntities(
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			title,
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			Ui::WebpageTextTitleOptions().flags);
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		auto descriptionResult = entry->page->description;
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		if (titleResult.text.isEmpty()) {
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			return descriptionResult;
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		} else if (descriptionResult.text.isEmpty()) {
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			return titleResult;
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		}
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		titleResult.text += '\n';
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		TextUtilities::Append(titleResult, std::move(descriptionResult));
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		return titleResult;
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	}();
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	auto result = textResult;
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	if (result.text.isEmpty()) {
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		result = std::move(mediaResult);
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	} else if (!mediaResult.text.isEmpty()) {
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		result.text += qstr("\n\n");
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		TextUtilities::Append(result, std::move(mediaResult));
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	}
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	if (result.text.isEmpty()) {
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		result = std::move(logEntryOriginalResult);
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	} else if (!logEntryOriginalResult.text.isEmpty()) {
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		result.text += qstr("\n\n");
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		TextUtilities::Append(result, std::move(logEntryOriginalResult));
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	}
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	return WrapAsItem(item, std::move(result));
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}
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TextWithEntities HistoryGroupText(not_null<const Data::Group*> group) {
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	Expects(!group->items.empty());
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	auto caption = [&] {
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		const auto first = begin(group->items);
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		const auto result = (*first)->clipboardText();
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		if (result.text.isEmpty()) {
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			return result;
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		}
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		for (auto i = first + 1; i != end(group->items); ++i) {
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			if (!(*i)->clipboardText().text.isEmpty()) {
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				return TextWithEntities();
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			}
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		}
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		return result;
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	}();
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	return WrapAsItem(group->items.back(), Data::WithCaptionClipboardText(
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		lang(lng_in_dlg_album),
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		std::move(caption)));
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}
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